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#include <iostream>
#include "audio.h"
#include "source.h"
namespace jin
{
namespace audio
{
/* עcallbackƵ̵߳ */
void defaultCallback(void *userdata, Uint8 *stream, int size)
{
SDLAudio* audio = (SDLAudio*)userdata;
audio->lock();
audio->processCommands();
audio->processSources(stream, size);
audio->unlock();
}
onlyonce bool SDLAudio::_init(const SettingBase* s)
{
if (SDL_Init(SDL_INIT_AUDIO) < 0)
return false;
SDL_AudioSpec spec;
spec.freq = 44100; // 44100 Hz
spec.format = AUDIO_S16SYS; // signed 16bits
spec.channels = 2; //
spec.samples = 1 << 15; // Uin16Χ2
spec.userdata = this;
spec.callback = defaultCallback;
audioDevice = SDL_OpenAudioDevice(NULL, 0, &spec, NULL, 0);
if (audioDevice == 0)
return false;
/* start audio */
SDL_PauseAudioDevice(audioDevice, 0);
return true;
}
onlyonce void SDLAudio::_quit()
{
SDL_CloseAudio();
delete audio;
}
void SDLAudio::lock()
{
SDL_LockAudioDevice(audioDevice);
}
void SDLAudio::unlock()
{
SDL_UnlockAudioDevice(audioDevice);
}
void SDLAudio::processCommands()
{
SDLSourceManager::get()->processCommands();
}
void SDLAudio::processSources(void* buffer, size_t len)
{
SDLSourceManager::get()->processSources(buffer, len);
}
void SDLAudio::play() {}
void SDLAudio::stop() {}
bool SDLAudio::pause()
{
return false;
}
bool SDLAudio::pause(Source* source)
{
return false;
}
bool SDLAudio::resume()
{
return false;
}
bool SDLAudio::resume(Source* source)
{
return false;
}
void SDLAudio::rewind()
{
}
void SDLAudio::setVolume(float volume)
{
}
float SDLAudio::getVolume()
{
return 0.f;
}
}
}
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